Erasing instrument.



I. 'LUGAS.

ERASING INSTRUMENT. APPLICATION FILED mm, 1901.

' PATBm-ED AUG. 4, 190a.

I GXATIUS LUCAS, OF PASSAIC, NEW JERSEY.

ERASING INSTRUMENT.

Application filed August 1,

To all whom it may concern:

Be it known that I, IGNATIUS Lucas, a citizen of the United States, residing at Passaic, in the county of Passaic and State of New Jersey, ha-ve'invented a new and useful Erasing Instrument, of which the following is a specification. I

The objects of my invention are; rst, to place the cutting edges of an erasing instrument in positions whereby all danger of one cutting himself or others while handling the said erasing instrument is avoided; second,

to make the sharpening of the erasing instru ment a simple operation. I

I attain these objects by the mechanism illustrated in the accompanying drawing in which- Figure 1 is a perspective view of the erasing instrument. Fig. 2 is a perspective view of a modification of the erasing instrument. Fig. 3 is a perspective view of the erasing instrument held on a grindstone as in the act of sharpening the erasing instrument. Fig. 4 is a perspective view of the modified erasing instrument held on a grindstone as in the act of sharpening the said modified erasing instrument. Fig. 5 is a bottom view of the erasing instrument. Fig. 6 is a side view of the modified erasing instrument. Fig. 7 is a top or bottom view of the modified erasing instrument.

A handle A, Fig. 1 has at its end a head B. The wall 0, of this head B, declines inward from the neck D, to the apex E, in a strai ht line as shown in Fig. 5. The wall C, is a so CUIVG-d from the neck D, to the apex E, shown in Fig. 1 and Fig. 3.

In Fig. 3 is shown how the cutting edge of the wall C, of the head I3, lays all over in a Specification 0! Letters Patent.

Patented Aug. 4, 1908.

1907. Serial No. 386,608. 1

plane on a grindstone or other sharpening l0 implement as in the act of sharpening the cutting edge of the erasing instrument.

The apex E, Fig. 1 of the erasing instrument is blunt.

In Figs. 2, 4, 6, 7, views of a modified form of the erasing instrument show the head B,

with two previously described walls C H joined at the apex E.

I claim: s 1. The erasing instrument comprising a handle at an end of which is a steel head the.

walls of which forming the cutting edges de- .;cline in a straight line inward from the neck to the apex of the head, when viewed from jtop or bottom.

Qillg'lhe erasing instrument comprising a handleat an end of which is a steel head the walls otwhieh forming the cutting edges decline in a straight line inward from the neck to the apex of the head, when viewed from top or bottom, said head of said erasing instrument having the above described walls curved, when viewed from the side.

3. The erasing instrument comprising a handle at an end of which is a steel head the walls of which forming the cutting edges decline in a straight lineinward from the neck to the apex of the head, when viewed from top or bottom, said head of said erasing instruinent having the above described walls curved, when viewed from the side, the said walls of the said erasing instrument having a blunt point at the apex of the head.

IGNATIUS LUCAS.

lVitnesses:

WILLIAM IxNAPP, FRANK STAYSKAL. 

